<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>注册</title>
</head>
<body>
<h1>注册</h1>
<form action="/register" method="post">
  <label>用户名:</label>
  <input type="text" name="username" required>
  <br>
  <label>密码:</label>
  <input type="password" name="password" required>
  <br>
  <button type="submit">注册</button>
</form>
<form action="/login" method="get">
  <button type="submit">返回登录</button>
</form>
</body>
</html>
